The only other races-of-Golarion book I have is the Gnomes of Golarion... which I really love, so it may have raised a rather high bar for me.
In both cases, I bought the splat books because I was picking up a character of that race, and I wanted to get a better feel for what it means to BE that race, especially in Golarion.
Gnomes of Golarion was a great book that gave me ideas on family structure, how long it takes to 'grow up', and, with the introduction of the Bleaching concept, really made the gnomes of Golarion feel like their own unique thing.
....and then there's Dwarves of Golarion.
I don't think it's an awful book on its own, but compared to Gnomes, I was disappointed. It felt much lighter on content. I don't really know at what age dwarves are considered mature, what the rate of childbirth is among the species, if a dwarf would have lots of siblings or very few, what gender roles are like other than a references to the wimmen staying home and the men goin' out to fight (which, if that's how dwarven culture is, fine, but... make it clearer to me than just off-hand references), what family structures are like, how the settlements are ruled and organized other than 'monarchy'...
Judging by the book, there are exactly three life paths you will take if you are a dwarf: you will Craft Things, you will Fight Things, or you will Heal Things. Presumably the dwarven culture has room for people who aren't actively being craftsmen (craftsdwarves?), fighters, or clerics, but it's not really outlined at all what those might be.
Many of the specific discussions of the dwarven culture seemed like they were there just to elaborate on mechanical things-- like the numerous references to dwarves not being slowed down by their gear.
Perhaps most damningly to me, there just didn't feel like there was anything new or original in here that goes beyond Tolkien's dwarves. There were a few mentions of the dwarf-tribes of Garund, sure, but beyond that this was nothing but the dwarf trope of fantasy for the last 50 years: forge, beer, beards. Golarion dwarves seem interchangeable with the dwarves of a half-dozen fantasy settings, and after the unique feel of the Golarion gnomes, I did find that a little disappointing.
Nothing in here was awful. But nothing was terribly surprising or interesting, either.
